物理
运动学、受力分析、电学与方程推导。
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energy efficiency energy output = 25 units energy input = 100 units ene…
0.25
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energy output = 25 units energy input = 100 units what is the energy ef…
0.25
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4 the author says that 3d printers are being used to ice cakes and make…
B. 3D printers can print in many different materials, including food.
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energy output = 25 units energy input = 100 units if you want to calcul…
100
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energy output = 25 units energy input = 100 units if you want to calcul…
25
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energy efficiency when energy is put into a system, some of that energy…
heat, sound, and light
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a cylindrical pressure vessel has a height of 9 feet and a diameter of …
B. \( 81\pi \) cubic feet
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2 the text describes the steps involved in 3d printing. what happens af…
A. The layers build up and harden, becoming a physical object.
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1. what will heighten the risk of a fatal crash? the presence of child …
the presence of other teen passengers ### Question 2
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1 what does 3d printing produce? a an image of an object b a 3d scan of…
C. a physical object
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boxes with metal shavings in each sample based on these statistics, how…
# Explanation: ## Step1: Count total dots Count the number of dots (samples). For 0:1, 1:3, 2:5, 3:4. Total dots: \(1 + 3 + 5 + 4 = 13\)? Wait, no, wait: Wait the dot plot: 0 has …
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question 7 of 10 which topic is explored in the intercalary chapters of…
C. The effects of changes in agriculture
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there are many different natural resources found in florida. which of t…
D. water
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renewable resources wind is a renewable resource. (1 point) true false
True
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are asked for will appear. if you decide that the box you clicked on is…
1. For 1 kilometer: The box above the blue arrow between $\frac{1}{2}$ mi and 1 mi (second box from left) 2. For 1 mile: The box above the blue arrow between 1 km and $1\frac{1}{2…
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a paper mill recently started producing cardboard boxes from recycled p…
250
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natural resources form in nature. which of the following is not an natu…
B. plastic ### Second Question:
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which is not true about renewable resources renewable resources (1 poin…
The option "All renewable resources are bad for the environment" (the last option) is NOT true about renewable resources.
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oil is not a renewable resource because... (1 point) it cannot be repla…
A. it cannot be replaced.
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1. in 2020, an average of _______ teens between the ages of 16 - 19 yea…
B. eight (assuming the options are labeled as A. six, B. eight, C. four) ### Question 2
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what statement most directly demonstrates a way that the geosphere is i…
D. Bacteria that convert ammonia into nitrites and nitrates are found in the soil.
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fill in the following conversions factors: 1 inch = cm 1 km = m 1 m = c…
1 inch = 2.54 cm 1 km = 1000 m 1 m = 100 cm 1 ft = 12 inch 1 cm = 10 mm 1 mile = 5280 ft 1 yd = 3 ft 1 mile is approximately 1.6 km 1 km is approximately 0.6 mile
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a well is a structure created to obtain water from deep in the geospher…
The well obtains water from the groundwater stage (derived from precipitation that infiltrates the ground to become groundwater).
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to ensure your batterys longevity, you should: have it checked by a mec…
keep the area where cables are connected to the positive and negative poles clean
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which of the following are components of your vehicles suspension syste…
springs, shocks, and tires
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what can you use to check if your vehicles tires need replacing? a penn…
a penny
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the charged particles in the beams that thomson studied came from atoms…
An atom's smaller negative particles are at a distance from the central positive particles, so the negative particles are easier to remove.
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what new characteristic did john dalton add to the model of the atom? a…
D. An atom can join with other kinds of atoms.
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scientists have changed the model of the atom as they have gathered new…
A. A few of the positive particles aimed at a gold foil seemed to bounce back.
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trees are renewable resources. (1 point) true false oil is not a renewa…
A. True ### Second Question (Oil is not a renewable resource because...)
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if your engine stalls, what is the first thing you should do? open your…
shift the gear into Neutral (N)
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cold weather can decrease tire pressure, so you should always: let air …
make sure your tires are inflated properly when it's cold
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seung park is a rancher with a steer that will compete at the national …
985
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why are fuel leaks a problem? they could drain your battery. they could…
They could cause a fire or cause you to breathe in toxic gas.
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which scientist developed the first model of the atom that proposed the…
Thomson
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which of the following is an example of potential energy? water flowing…
water stored behind a dam
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if your headlights go out, how can you safely get off the road? you sho…
You should turn on your signal, hazard, and parking lights to get safely off the road.
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an arrow is pulled back, waiting to be shot. what kind of energy does t…
potential
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what is the energy of motion? kinetic energy power energy thermodynamic…
kinetic energy
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rutherford tracked the motion of tiny, positively charged particles sho…
Some particles traveled through empty parts of the atom and some particles were deflected by small areas of high-density positive charge in atoms.
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the modern model of the atom describes electrons in a little less speci…
Electrons do not follow specific paths, so describing the area where an electron is likely to be is more scientifically accurate.
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what do the laws of thermodynamics state about the total energy coming …
D. Total energy out of a system is always EQUAL to total energy going in. (Note: Assuming the last option is labeled D, if the original labels are different, adjust the label acco…
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when energy is lost in energy transformations, what form is this energy…
heat (the option with "heat" text)
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what is the capacity to do work? power energy
Energy (the option with text "Energy")
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3 civil rights leaders do not always agree on the best steps to take in…
A. "A. Philip Randolph canceled the march to prove their good faith toward Roosevelt, but Rustin did not agree with his decision. Rustin argued that the executive order did not de…
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if you see fire coming from your vehicles hood, you should: stop, get f…
Stop, get far away from the car, and call the Fire Department.
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2 what does the author list in the third paragraph? a the names of peop…
D. the various causes Rustin championed and organized for throughout his life
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instructions: circle the letter that best ends each sentence or answers…
1. C) Australia 2. D) Desert and Semiarid 3. A) Australia 4. A) Australia and Tasmania 5. B) English prisoners and the poor 6. B) New Zealand 7. B) New Zealand 8. A) Polynesia 9. …
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an average healthy adult has about two of blood, and it takes approxima…
An average healthy adult has about two **liters** of blood, and it takes approximately 60 **seconds** for the cycle to be completed. *Note: The standard adult blood volume is 4-5 …
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an oven is being preheated. as the oven heats up, its temperature (in °…
(a) $20$ °C; The initial temperature is represented by the **y-intercept** of the graph. (b) **increases towards 100°C** (c) $y=100$; The correct statement is: *The temperature of…
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a persons resting heart rate typically with age.
decreases
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to simplify your explanations, your first example is reconstituting pow…
A possible consequence is incorrect dosage of the antibiotic. An underdose may fail to treat the bacterial infection (allowing it to worsen or develop resistance), while an overdo…
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what does the following sentence suggest? film industry professionals w…
Some film industry professionals are eligible to vote.
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what does the following sentence suggest? unfortunately, a power outage…
There is only one convention center in Springfield.
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the interaction between buyers and sellers in the marketplace leads to …
A. price
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which of the following types of mining is least likely to cause a loss …
long wall method used deep underground
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select all that apply. select the items that describe voluntary exchang…
A. occurs between individuals and countries, B. trading money for a car, C. bartering baseball cards
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rangelands are dry, open grasslands. who manages rangelands in the unit…
B. Bureau of Land Management
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which of the four ways of using land below is least likely to cause env…
conservation
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a rectangular prism is shown below. which diagram is a net for this pri…
776 For the net identification:
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what is a direct consequence of destroying a habitat and replacing it w…
B. a loss of biodiversity
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the scientific process is ____, involving both inductive and deductive …
cyclical
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r = (cbr + ima) - (cdr + em) cbr= 18% ima= 1% cdr= 5% em=12% what is r?…
\( 2\% \)
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drag the tiles to the boxes to form correct pairs. match the type of se…
- sexual, physical, mental, and emotional violence $\longleftrightarrow$ abuse - taking advantage of a power imbalance $\longleftrightarrow$ exploitation - unwanted or uninvited c…
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drag the tiles to the boxes to form correct pairs. match the type of se…
- sexual, physical, mental, and emotional violence ↔ abuse - taking advantage of a power imbalance ↔ exploitation - unwanted or uninvited comments of a sexual nature ↔ harassment …
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historically, what contributed to the zero population growth of humans?…
A. environmental resistance and biotic potential
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how does convection occur in the troposphere? the suns rays heat earths…
B. Warm air rises and cool air sinks.
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how do the magnetic and electrical components of electromagnetic waves …
at right angles
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which interaction contributes to the greenhouse effect? gases in the at…
A. Gases in the atmosphere absorb heat.
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how does energy from the sun travel to earth? through radiation through…
through radiation
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answer all questions and complete all sketches in our notebook. normal …
## Normal Fault Answers 1. Point B moved downward relative to point A. 2. The rock layers are offset downward on one side of the fault. 3. No 4. River: Forms a waterfall/rapids at…
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which color of visible light has the shortest wavelength? ○ green ○ red…
violet
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how do ice and water on the ground affect incoming solar radiation? ○ t…
None of the provided options are accurate. The correct context is that fresh snow/ice reflects ~80-90% of incoming solar radiation (albedo effect), while water reflects ~4-10% dep…
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cracking up 1 a group of nomads got a shock recently when out in a dese…
1. Tectonic plates spreading apart in Africa will eventually create a new ocean 2. c. The spreading of tectonic plates in Africa is pulling the continent apart
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what typically starts the process of ecological succession? a stable cl…
a fire or flood disturbance
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generally, the your recovery heart rate drops, the more fit you are.
faster
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8 ¿qué tipo de anteojos no son adecuados para proteger sus ojos? o a. l…
C. Gafas de sol y gafas graduadas
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7 ¿contra qué peligros pueden proteger las botas? a. deslizamiento b. c…
E. Todas las opciones son correctas
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how many cups are equivalent to 4 tablespoons of sugar? cups: 0, \\frac…
$\frac{1}{8}$
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heart rate know-how a persons resting heart rate typically with age.
decreases
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6 ¿qué tipo de ppe está diseñado para absorber los golpes de los objeto…
C. Cascos
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4 ¿cuáles son algunos peligros mecánicos comunes en el lugar de trabajo…
D. Todas las opciones son correctas
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which is a type of heat transfer that causes the air at the top floor o…
B. convection
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suppose a novel tells about a young girl growing up poor in a rural tow…
A. A feral cat with only one eye that manages to keep stealing enough food to stay alive
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3 ¿cuáles son algunos peligros físicos comunes en el lugar de trabajo? …
D. Todas las opciones son correctas
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what happens to the particles of a substance as its temperature increas…
A. They move faster.
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quoted words notice & note: mark the words in paragraph 2 that tell you…
To generate questions about the author's attitude toward love, we can use the given text and the example structure. Here are some questions: 1. What did you mean by saying love is…
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what is the characteristic feature of the tundra biome? permafrost heav…
permafrost
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which is a form of heat transfer that is reduced by using a pot holder …
B. conduction
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analyzing the uneven distribution of sun’s energy on earth what would b…
The equator would be warmer than the poles.
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which story line best shows that the narrator feels disillusioned? a. t…
B. An old man decides to look up his high school sweetheart. He learns from her son that she has passed away. He suspects the son is really his own.
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heart rate know - how an average healthy adult has about two of blood, …
1. gallons 2. seconds
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a rancher owns 400 cattle in a feedlot directly above a major groundwat…
construct an impervious manure - storage facility
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which zone does not have any sunlight? aphotic zone photic zone interti…
A. aphotic zone
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what makes up the earths atmosphere? tiny organisms that fly through th…
B. a layer of gases that encircles our planet (Note: Assuming the options are labeled A, B, C with A being "tiny organisms that fly through the air", B being "a layer of gases tha…
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what makes up the earths atmosphere? tiny organisms that fly through th…
B. a layer of gases that encircles our planet (assuming the options are labeled A, B, C with A being "tiny organisms that fly through the air", B being "a layer of gases that enci…
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identifying steps for heating the troposphere use the dropdown menus to…
1. radiation 2. conduction 3. convection 4. current
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which type of plate boundary is known for generating particularly power…
convergent boundaries
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identifying steps for heating the troposphere use the dropdown menus to…
1. radiation 2. conduction 3. current
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identifying convection which statements represent convection? select tw…
B. The movement of air in a hot-air balloon makes it rise into the sky. E. A house has high heating bills because the heat ends up in the attic.